3 AT Commands, Result Codes, and S-Registers

Command:

Yn

Long Space Disconnect

Values:

 

n = 0

Default:

 

0

Description:

Y0

Disable sending or responding to long space break signal

 

 

on disconnect.

 

Y1

Enable sending or responding to long space break signal on

 

 

disconnect. (Not supported.)

Command:

Zn

Modem Reset

Values:

 

n = 0 or 1

Default:

 

None

Description:

Z0

Reset modem to profile saved by the last &W command.

 

Z1

Same as Z0.

Command:

&Bn

V.32 Auto Retrain

Values:

 

n = 1

Default:

 

1

Description:

&B0

Disable V.32 auto retrain. (Not supported.)

 

&B1

Enable V.32 auto retrain.

Command:

&Cn

Data Carrier Detect (DCD) Control

Values:

 

n = 0 or 1

Default:

 

1

Description:

&C0

Force Data Carrier Detect signal high.

 

&C1

Let Data Carrier Detect follow carrier signal.

Command:

&Dn

Data Terminal Ready (DTR) Control

Values:

 

n = 0, 1, 2, or 3

Default:

 

2

Description:

&D0

Modem ignores DTR signal.

 

&D1

When DTR drops while in online data mode, the modem

 

 

enters command mode, issues an OK, and remains

 

 

connected.

 

&D2

When DTR drops while in online data mode, the modem

 

 

hangs up.

 

&D3

When DTR drops, the modem hangs up and resets as if an

 

 

ATZ command were issued.

MT5634ZPX-PCI

39

Page 39
Image 39
Multi-Tech Systems MT5634ZPX-PCI Long Space Disconnect, Modem Reset, Auto Retrain, Data Carrier Detect DCD Control